Skip to content
Heist/ feed
High

RDMA/siw: Fix potential NULL pointer dereference in header processing

Type: advisorySource: Official CVE List1 source record

In the Linux kernel, the following vulnerability has been resolved: RDMA/siw: Fix potential NULL pointer dereference in header processing If siw_get_hdr() returns -EINVAL before set_rx_fpdu_context(), qp->rx_fpdu can be NULL. The error path in siw_tcp_rx_data() dereferences qp->rx_fpdu->more_ddp_segs without checking, which may lead to a NULL pointer deref. Only check more_ddp_segs when rx_fpdu is present. KASAN splat: [ 101.384271] KASAN: null-ptr-deref in range [0x00000000000000c0-0x00000000000000c7] [ 101.385869] RIP: 0010:siw_tcp_rx_data+0x13ad/0x1e50

Announced Source revision 1
Original source ↗

CVE-2026-23242

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2026-23242

Linux

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Linux

Source reference: /containers/cna/affected/1/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "8b6a361b8c482f22ac99c3273285ff16b23fba91",
        "lessThan": "ab61841633d10e56a58c1493a262f0d02dba2f5e",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "8b6a361b8c482f22ac99c3273285ff16b23fba91",
        "lessThan": "8564dcc12fbb372d984ab45768cae9335777b274",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "8b6a361b8c482f22ac99c3273285ff16b23fba91",
        "lessThan": "ab957056192d6bd068b3759cb2077d859cca01f0",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "8b6a361b8c482f22ac99c3273285ff16b23fba91",
        "lessThan": "ffba40b67663567481fa8a1ed5d2da36897c175d",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "8b6a361b8c482f22ac99c3273285ff16b23fba91",
        "lessThan": "87b7a036d2c73d5bb3ae2d47dee23de465db3355",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "8b6a361b8c482f22ac99c3273285ff16b23fba91",
        "lessThan": "714c99e1dc8f85f446e05be02ba83972e981a817",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "8b6a361b8c482f22ac99c3273285ff16b23fba91",
        "lessThan": "ce025f7f5d070596194315eb2e4e89d568b8a755",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "8b6a361b8c482f22ac99c3273285ff16b23fba91",
        "lessThan": "14ab3da122bd18920ad57428f6cf4fade8385142",
        "versionType": "git"
      }
    ],
    "programFiles": [
      "drivers/infiniband/sw/siw/siw_qp_rx.c"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "5.3"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "5.3",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "5.10.252",
        "versionType": "semver",
        "lessThanOrEqual": "5.10.*"
      },
      {
        "status": "unaffected",
        "version": "5.15.202",
        "versionType": "semver",
        "lessThanOrEqual": "5.15.*"
      },
      {
        "status": "unaffected",
        "version": "6.1.165",
        "versionType": "semver",
        "lessThanOrEqual": "6.1.*"
      },
      {
        "status": "unaffected",
        "version": "6.6.128",
        "versionType": "semver",
        "lessThanOrEqual": "6.6.*"
      },
      {
        "status": "unaffected",
        "version": "6.12.75",
        "versionType": "semver",
        "lessThanOrEqual": "6.12.*"
      },
      {
        "status": "unaffected",
        "version": "6.18.14",
        "versionType": "semver",
        "lessThanOrEqual": "6.18.*"
      },
      {
        "status": "unaffected",
        "version": "6.19.4",
        "versionType": "semver",
        "lessThanOrEqual": "6.19.*"
      },
      {
        "status": "unaffected",
        "version": "7.0",
        "versionType": "original_commit_for_fix",
        "lessThanOrEqual": "*"
      }
    ],
    "programFiles": [
      "drivers/infiniband/sw/siw/siw_qp_rx.c"
    ],
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2026-23242

Source reference: /cveMetadata/cveId

Publisher severity

high

Source reference: /containers/cna/metrics

Event
#39826 · Revision 1
Added to Heist Feed
Publisher date
Read the original announcement